Film-indicator.



M. AIGODWIN.

FILM INDICATOR.

APPLICATION FILED nc.4. I9I6.

MERRIT ALLEN GODWIN, OF BRIDGEWATER, MASSACHUSETTS.

FILM-innicaron.

Specification of Letters Patent.

Patented duly 1'? 1l91l W..

application led December t, 1916. Serial No. 135,085.

ments in Film-Indicators', of which the following is a specificationa My invention relates to kinetoscopic projectors, with especial reference to where two projectors are employed in a booth and alternately operable, continuous projection by the two projectors requiring that the lamp in the inoperative `projector must bev energized a few moments before the completion of projection of a reel in the operating projector in order that the arc between the carbons shall be white and steady when the inoperative projector is started.

lt is now the practice to open the magazine door to determine the time to energize the lamp in the other projector, and it was in order to overcome this objectionable and far from reliable necessity that my invenf tion was conceived. j

My invention isfully described in the following specification, of which the accompanying drawings form a part, in which like characters refer to like parts in each of the views, and in which Figure 1 is a fragmentary sectional view of a lfilm magazine with contained film reel, proyided wlth my invention, in full reel position, approximately;

Fi 2 I1s a similar view with the reel near yin unwound position, and with my device indicating such condition;

Fig. 3 is a transverse section through the magazine; and j Fig. t is an exterior view of the magazine with my invention in position thereon.

Referring to the drawings, 5 represents a magazine having a reel 6 therein supporting a roll 7 of lm and rotatable on the shaft 8, the gradually decreasing radius of the said 1 ll 1n an operating machine being the controlling factor in indicating, by means of my device, the 4amount of Hlm remaining to be projected. in. the opeting projector in order to allow suflicient time for the clearing and steadying of the light in the moperative projector before beginning projection of the film therein.

My device consists of inner and outer blocks 9 and 10 secured to the magazine in any desired manner and bored for a stub shaft 11 having an indicating finger 12 at its outer end and a block 13 at its inner end, both'of which are immovably, though preferably detachably, secured on said shaft, and the bearing for said shaft so formed prevents the passage of light therethrough.

Secured in any desired manner to the block 13 is a rod 14 carrying a bifurcated block 15 at its outer end in turn carrying a spindle 16 for a roller 17 normally bearing upon the film roll, though adapted to be held in `raised position, away from the film roll, as in reel substitution, by means of a clip or latch 18 of any desired form.

Secured to the outer block 10 is a sector 19 held in place by two arms 20 and 21 in such manner as to rest immediately adjacent the path of movement of the indicating finger 12, and said sector having a mark thereon indicating, when the finger 12 has reached it, that the time for energizing the lamp in the other projector has been reached, but said sector ma have marks thereon for other indications if desired, and the finger 12 and block 13 may be held on the shaft 11 by set-screws whereby each will be adjustable with respect to said shaft.

My device is very simple in construction and in installation though entirely practical and of tors and, whl e l have shown and described one embodiment thereof, I reserve the right to make structural alterations which do not depart from the spirit of the invention nor come outside the scope `of the appended claim.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

The combination with a kinetoscopic mag- 4 eat value to projector operaazine, a reel therein embodying side plates,

a film wound on the revel, and lying between the said plates, a member pivoted in the magazine at a point above the reel and adapted to move into and out of the space between the side plates, an indicator connected with the member, and a catch mounted in the magazine and engageable with the member for holding the latter at a mesme MERRIT ALLEN GoDWIN. 

